Select the correct answer.
The elimination method is ideal for solving this system of equations. By which number must you multiply the second equation to eliminate t
y-variable, and what is the solution for this system?
x+3y=42
2x-y=14
O A.
Multiply the second equation by -3. The solution is x = 12, y = 9.
OB. Multiply the second equation by-2. The solution is x = 12, y = 10.
OC. Multiply the second equation by 2. The solution is x = 15, y = 9.
OD. Multiply the second equation by 3. The solution is x = 12, y = 10.
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